Heavy thunderstorms were discovered on the weather map at
the 200-250km distanced southwest situated region of Freiburg and
the 'Deriländereck' Schaffhausen (Basel, Muhlhouse). In Fuerstenfeldbruck
a clear sky made the situation perfect. Ok up to the hill and the
same procedure as in August 2015. And great!!! Three times this
seldom Red Sprites were photographed.

After checking out 1200 photos, surprisingly three times the
sprites were photographed at 21:50 UTC (23:50 MESZ)

But how does the rare luminous phenomena come to this name, when
they were discovered and what is the reason of origin?

The appearance of a Red Sprites takes
around
2/100 seconds,
can
be bright and possible to be
seen with the naked eye.
However, the
brightness is several times under a lightning discharge. 'Red
Sprites' can appear on an average altitude of 60-80 km in the
mesosphere. Also sightings to a height of 90 km to the edge of the
ionosphere are possible. The height of the sprite can vary from 10
km to 20 km. The width of the discharge can reach up from 40 to
60 km.

Until 1989, the existence of Red Sprites was generally denied
because only jet pilots announced sporadic sightings. Here they
reaped rather grumpy and sarcastic reactions :-(. Thus, many
sightings have been omitted. 1989 the first Red Sprite photos did
succeed, but due to the not yet
advanced camera technology the
results were scientifically useless.

1991 the astronauts of the former Space shuttle mission succeeded to capture this phenomenon specifically the first
time from space. These photos served
also
as the first meaningful
evidence. Afterwards high-tech peppered research aircrafts were
inserted by very costly experiments from the NASA and NOAA, which
should explain and analyze these phenomena further. After this
efforts yielded no results for months, and the researchers
literally get messed around with this situation, they
called these
discharges almost mischievously 'Sprite'
in the sence of a whorled goblin.
The first coulored photo was taken 1994 by the 'University of
Alaska', whereby a high efficent camara was fixed under a weather balloon.

Incidentally, we don’t have a plausible explanation of the origin
of Red Sprites until today, but there are countless theories. Look
out for the

scientific article in the
Washington
post.
The most common version declares that during heavy thunderstorms
larger areas of electrical tension build itself up over the super
cells, which consequently discharge due to the oversaturation
upwards
by
itself. The actual luminous phenomenon gets produced in the
mesosphere by collision of electrons with the always present
cosmic gamma radiation.